Resync raid drives

[Chris Mason]

I am using two drives as mirrored drives (raid1) on two RH9 servers. On both
servers, the raid setup has lost a device. I don't belive the drives are
faulty, in fact I can boot with either and see data on the drives, however,
it is older on one of them. I believe the drives have become out of sync doe
to a crash at some stage.

[root at loki root]# dmesg |grep raid
raid1: md1, not all disks are operational -- trying to recover array
raid1: raid set md1 active with 1 out of 2 mirrors

[root at loki root]# cat /proc/mdstat 
Personalities : [raid1] 
read_ahead 1024 sectors
md1 : active raid1 hda3[0]
      116093632 blocks [2/1] [U_]



How do I resync them? There doesn't seem to be much literature out there on
this that is current.


Chris Mason
masonc at masonc.com
Box 340, The Valley, Anguilla, British West Indies
Tel. (264) 497-5670 - Cell: (264) 235-5670 - Also (305)-735-3483   
Fax: (264) 497-8463 - US Fax (815)301-9759
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